Sinus head clamp



Oct. 23, 1928. 1,688,382

D. M. GHRIST SINUS HEAD CLAMP Filed Oct 18, 1927 2 Sheets-Sheet l Oct. 23, 1928. 1,688,382 D. M. GHRIST SINUS HEAD CLAMP Filed. 001;. 18, 1927 2 Sheets-Sheet 2 stantially identical Roentgenograms Patented Oct. 23, 192s.

DAVID M. ennrs'r, or GLENDALE, CALIFORNIA! sinus HEAncLAMr.

Application filedOctobr 18, 1927. Serial No. 226,22

This invention relates to a head support and clamp for use in making lioentgenograms of cranialysinuses.

An object of the invention is device which is adapted to be employed in conjunction with a Buckey-Potterdiaphragm of either curved or flat type .for holding the head of a subject in proper positionrelatively to a Roentgen tube arranged above the dia phragm and a photographic film or plate arranged beneath the diaphragm, to facilitate production of stereo plates showing the sphenoidal, ethmoidal and frontal sinuses and antrums for use in the diagnosis of diseased conditions and also for identification purposes.

Another object isto provide a device of the above character which is simple in construction and which may be readily applied and operated and which is operable to forcev the head of the subject to a proper positionand act to maintain the head stationaryt.

Another object is to provide a head support and clamp of the type abovespecified which will facilitate the production of' subtaken of a subject at different times thereby enabling the use of Roentgenograms for identification purposes.

' Vith the foregoing objects in View together with such other objects as may appear, the invention resides generally in the provision of a frame adapted to'be supported on a Buckey- Potter diaphragm for the like, which frame is fitted with a'pair" of inclined headisupporting panels for alternate use in disposing the head in upwardly and downwardly inclined positions and] in the provision of a clamp for holding the head stationaryfon the supporting panel. The invention further resides'in the partsand in the combination, construction and arrangement of'parts hereinafter described and illustrated by way-of example in the accompanying drawings, in which: 7 f

Fig. lis a perspective view of the device;

Fig. 2 is a plan v ew of the frame portion of the device;

Fig. 3 is a detail In vertical section as seen on the line 33 of Fig. 2;

Fig. 4 is a viewinsideelevation of the head.

clamp showmg it as detached'from the frame; Fig. 5 is an enlargedvlew'in end elevation of the head clamp as seen-1n the direction indicated by the arrows 5 in Fig. 4:;

to provide a Fig. 6 is a side view of the device showing it as applied in supporting the head in an upwardly inclined position; a

Fig.7 is a View in sile elevation showing the device as applied and supporting the head in a downwardly inclined position.

Referring to the drawings more specifically, A indicates generallythe frame portion of the dev'ice and ,B designates the head clampingfportion thereof. The frame A is,

here shown as of rectangularform and embodies side rails 10 and 11 connected together 'by-end members 12 and13f The side rails 10 and 11 have their upper margins extending-on a common plane and have their lower margins spaced above the plane of the lower margins of the end memberslQ, and 13 which latter are adapted to seat on and be detachably afiixed to a Buckey-Potter diaphragm C by suitable fastenings, engaging openings in inwardly projecting lugs 14 and 15 on the end members 12 and 13...

Y Supported by the side rails 10,and 11 are a pair of spaced inclined which panels are-inclined in corresponding 'directions.;the panellfi being disposed at an angle of seventeen degrees to the horizontal and the panel 17-being disposed at an angle of twenty-five degrees The panel 1 6 isformedce trally thereof with a nose receiving opening 18 of general t1l angular shape,;the base marginof which opening is disposeduppermost; The panel 17 is formed with a central nose receiving opening 19 of general triangular shape, the

basemargin of which is disposed-lowermost. :The head clamp l3 is designed tobe removably and slidably supported on the frame Afor which purpose it is formed Witha pair of spaced parallel base members 20 and 21, the outer ends of which terminate in shoes 1 22 adapted to seat on the upper margins of the side rails 10 and 11; the shoes 22 including; downwardly proj ecting flanges 23 adapted to againstthe outer side faces of the rails .11 to hold the head clamp B against project 10 and v I lateral movement when seated on the frame.

panels 16 and 17,v v

to the horizontal.

The base members 20 and 21 arerigidly connected together by a barQ l extendingbetween standards 25 and 26 erected. centrally of the base members 20 and 2L The base members,

standards and connecting bar are preferably formed integral in one piece. The bar 24: is arranged to extend parallel with the side rails to thebars 33.

and 11 of the frame but on a higher plane and is disposed to eXtend over the longi- .tudinal center of the frame.

riages is here shown as including sleeves 31 and 32 which are shdahleon the rods 27 and 28 and are connected together by a bar Mounted on the carriages 29 and 30'are a pair of head clamping blades 3% and" which blades are adapted to [be positioned against the opposite sides o fa'head positioned on the head-supporting plate. The bla'desa're preferably flatand are inclined toward each other a with their lower-ends spaced apart a greater distance than their upper ends so that when positioned astride the head the upper ends thereof will project inwardly slightly on the head so that they will serve not only to hold the head against sideways movement, but will tend to press the head downwardly and will oppose upward movement thereof.- The blades t and 3-5 are preferably flexible so as to yield slightly on being. brought tightly against the head. As a means for mounting the blades on the carriages the latter are formed with end extensions 86 projecting in continuation of the bar133 to which the blades are secured by screws 37.0r other suitable fastenings.

Means are provided for facilitating move ment ofth-e carriages 29 and-30 whereby their movement may be effected collectively toward and away fromeach other so as to maintain the head clamping blades at corresponding.

distances on each side of thelongitudinal center of the supporting frame which means is here shown as embodying lazy tongs 38 including links 39 and 40 pivotally connected at 4.1m the bar 24 and connected at their outer ends with links 42 pivotally connected at 43 Itis obvious however that'any other suitable mechanism may be employed for this purpose.

In the operation of the invention the supporting frame A is positioned on a Buckey- Pott-er diaphragm or the like in a horizontal positiombeing disposed to present either the head supporting plate 16 or 17 toward the head of the subject who is disposed recumbent position face downward; the frame A being-arranged with the head supporting plate 17 forwardmost when it is desired that the head of the person be,disposed inan upwardly inclinedposition, and the frame being arranged with the head supporting plate '16 forwardmost when it is desired to dispose the head of the subject inthe downwardly in- 'mani aulation of the carria 'es 27 and 28 "clamping'blades to the head sitioning of the clined position. The head is placed in the supporting plate face downward with the head and the blades are :brought into engagement with the opposite'sides of the head by 29 and 30; the carriages being advanced toward each other such distance asto place the blades under tension against the sides of the. head. The headwill then be securely held against displacement by reasonof the nosebeing engaged plate and the head being by the supporting engaged between the clamping gblades. The

blades will bemaintained in clampingengage- 1 ment with the head by reason ofyfrictional, engagen ent'ofthe sleevesl fil and 32 with the rods 27 and 2 8 the stresses imposed on the blades being transmitted to the sleeves and acting to bind the latter on the supporting I rods.

After making a Roentgenograin exposure with the head porting plates 16or 17, the clamping plates are released from engagement with thehead by merely pulling thecarriages apartwhere upon the head clamping element B is re moved, and where it is (:lesiredv to make an other exposure with the head positionedflon the other of the plates 16 or l t', the frame A is reversed and theclamping elem p a thereon and operated aSbefOreQ By mounting the carriages 29 and 3.0 to slide freely longitudinallyof the guide rods adjustment thereof may be easily positioned oneitherof the supand quickly effected both in applying the i and in removing the therefrom. By forming-the clamping element for demountable engagement with thesuppor-ting clamping element [may be employed {with plurality of head supporting. plates,v and by shdably supporting the head clamping eleframe and applying it for reversal relat vely to the frame, a single ment on the supportingframe it may be readily shifted longitudinally of the frame to enable proper positioningfof the clamping the supporting plate.

j j By providing the supporting frame w ththe pair ofhead lnclination, a' single supporting frame will serve for positioningthe headof a subject faeilitatesthe production of substantially identical .Roentgenograms taken at intervals 7 for the production of,

. blades with relation tothe head restingon V supportt ng plates disposed at different angles of i head will be assured, which 7 apart and renders the device especially suitsaid frame and operable to clamp a head dis-.

posed on either of said supporting plates.

In a head clamp-of. the character described, a supporting frame, a pair of inclined head supporting plates carried by said frame, each of which is formed with a nose receiving opening, said openings being of substantially triangular shape with the base margin of one of the openings extending lowermost and the base iargin of the other extending uppermost, ano'means car ied by said frame operable to clamp a head supported on either of said plates.

3. in a head clamp of scribed, a supporting frame, a pair of head supporting plates carried by said frame formedv with oppositely extending nose receiving Openings, a head clamping element adapted to be detachably' supported on saidframe includ ng a pair of carriages adapted to be advanced and reslidably supported the character detracted relatively to each other, and a clamping blade carried by each of said carriages.

4. In a head clamp of the character described, a frame, a plurality of head supporting plates on said frame, a frame slidably and demountably supported on said first named frame, a pair of parallel guide rods on said second frame extending transversely of saidfirst named frame, a pair of carriages slidably supported on said guide rods, and head clamping blades carried by said carriages. a

5. In a head clamp of the character described, a frame, a plurality of head supporting'plates on said frame, and demountably supported on said first named frame,- a pair of parallel guide rods on said second frame extending transversely aframe slidably of said first named frame, a pair of carriages slidably supported on said guide rods, head clamping blades carried by said carriages,

and means whereby moving one of said carriages will effect movement of the other carriage in an opposite direction.

6. In a head clamp of the character described, means for supporting the head of a personface downward, a pair of flexible head clamping blades, and means operable to position said blades under tension against the opposite sides of ahead on said head supporting means.

in testimony whereof, I have aflixed my signature.

. 1 DAVID M. GHRIST. 

